Well, I went the other way, from a Mac to a PC. For the specced machine I was after a Mac would have cost me another 1K minimum. Plus it seems to me the peripherals are more expensive.

Anyway, as for file compatability, you should be able to copy a runtime folder onto a DVD from your PC, and just put it onto the Mac. In OSx I believe there are no conversions necessary.
The one exception can be thumbnails, where I've converted them to PNG files.

Things that I miss on the Mac that are'nt on the PC:
Spotlight: Just being able to type in a file name your looking for in the corner of the window to find what you want without having to go through a search file programme.
Views: The vertical rows view is so useful for moving content around, and seeing previews of the file as you tab across is superb, whether they're PDF or image files.

PORTAL